SLVU281B May   2009  – August 2021 TPS54620

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Background
    2. 1.2 Performance Specification Summary
    3. 1.3 Modifications
      1. 1.3.1 Output Voltage Set Point
      2. 1.3.2 Slow Start Time
      3. 1.3.3 Track In
      4. 1.3.4 Adjustable UVLO
      5. 1.3.5 Input Voltage Rails
  3. 2Test Setup and Results
    1. 2.1  Input / Output Connections
    2. 2.2  Efficiency
    3. 2.3  Output Voltage Load Regulation
    4. 2.4  Output Voltage Line Regulation
    5. 2.5  Load Transients
    6. 2.6  Loop Characteristics
    7. 2.7  Output Voltage Ripple
    8. 2.8  Input Voltage Ripple
    9. 2.9  Powering Up
    10. 2.10 Thermal Characteristics
  4. 3Board Layout
    1. 3.1 Layout
    2. 3.2 Estimated Circuit Area
  5. 4Schematic and Bill of Materials
    1. 4.1 Schematic
    2. 4.2 Bill of Materials
  6. 5Revision History

1.2 Performance Specification Summary

A summary of the TPS54620EVM-374 performance specifications is provided in Table 1-2. Specifications are given for an input voltage of VIN = 12 V and an output voltage of 3.3 V, unless otherwise specified. The TPS54620EVM-374 is designed and tested for VIN = 8 V to 17 V with the VIN and PVIN pins connect together with the J3 jumper. The ambient temperature is 25°C for all measurements, unless otherwise noted.

Table 1-2 TPS54620EVM-374 Performance Specification Summary
SPECIFICATIONTEST CONDITIONSMINTYPMAXUNIT
VIN voltage range (PVIN = VIN)81217V
VIN start voltage6.521V
VIN stop voltage6.065V
Output voltage set point3.3V
Output current rangeVIN = 8 V to 17 V06A
Line regulationIO = 3 A, VIN = 8 V to 17 V±0.02%
Load regulationVIN = 12 V, IO = 0 A to 6 A±0.012%
Load transient responseIO = 1.5 A to 4.5 AVoltage change–100mV
Recovery time60µs
IO = 4.5 A to 1.5 AVoltage change100mV
Recovery time120µs
Loop bandwidthVIN = 12 V, IO = 6 A43kHz
Phase marginVIN = 12 V , IO = 6 A52°
Input ripple voltageIO = 6 A520mVPP
Output ripple voltageIO = 6 A20mVPP
Output rise time4ms
Operating frequency480kHz
Maximum efficiencyTPS54620EVM-374 , VIN = 8 V, IO = 2 A95%